/*
 * 版权所有 (C) 2015 知启蒙(ZHIQIM) 保留所有权利。[遇见知启蒙，邂逅框架梦]
 * 
 * https://zhiqim.org/project/zhiqim_framework/zhiqim_orm.htm
 *
 * Zhiqim ORM is licensed under Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *          http://license.coscl.org.cn/MulanPSL2
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */
package org.zhiqim.orm.annotation;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import org.zhiqim.kernel.constants.SignConstants;

/**
 * 
 * 表连接注解属性类，用于定义视图的一个连接属性
 * @see AnViewJoin  定义一个连接属性放置到连接表中
 *
 * @version v1.0.0 @author zouzhigang 2015-10-22 新建与整理
 */
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
public @interface AnViewJoinValue
{
    /** 连接类型(EQUAL|LEFT|RIGHT) */
    String type();
    
    /** 左表名 */
    String lTable();
    
    /** 左表列名 */
    String lColumn();
    
    /** 右表名 */
    String rTable() default SignConstants._EMPTY_;
    
    /** 右表列名 */
    String rColumn() default SignConstants._EMPTY_;
    
    /** 右值，右值和右表名右表列名互斥只取一个 */
    String rValue() default SignConstants._EMPTY_;
}
